Are Elegant ones more prominent?
Very prominent. Seriously, they're annoying to get as they're mostly considered worthless as they're so common. You can put up any other color and say "No Elegant/Purple" in the comments, and they still go and give you one. It's awful xD And of course, hunting down all the patterns is addictive to someone like me.
The ones I have as of now: Polar, Tundra, Continental, Garden, Elegant, Meadow, Modern, Marine, High Plains, River, Monsoon (WUBWUBWUB), Sun.
EDIT: Add in Savannah and a dark green one with dark brown lower wings?